<template>
<div class="container">
  <el-form :inline="true" class="demo-form-inline" :model="cForm" :disabled="disableSelect">
    <el-form-item label="一级分类">
      <el-select placeholder="请选择" v-model="cForm.category1Id" @change="handler1">
        <el-option :label="c1.name" :value="c1.id" v-for="c1 in list1" :key="c1.id"></el-option>
      </el-select>
    </el-form-item>
    <el-form-item label="二级分类">
      <el-select placeholder="请选择" v-model="cForm.category2Id" @change="handler2">
        <el-option :label="c2.name" :value="c2.id" v-for="c2 in list2" :key="c2.id"></el-option>
      </el-select>
    </el-form-item>
    <el-form-item label="三级分类">
      <el-select placeholder="请选择" v-model="cForm.category3Id" @change="handler3">
        <el-option :label="c3.name" :value="c3.id" v-for="c3 in list3" :key="c3.id"></el-option>
      </el-select>
    </el-form-item>
  </el-form>
</div>
</template>

<script>
export default {
  name: 'CategorySelect' ,
  props: ['disableSelect'],
   data () { 
      return {
        list1: [],
        list2: [],
        list3:[],
        cForm: {
          category1Id: '',
          category2Id: '',
          category3Id: ''
        }
      }
    },
    mounted() {
      this.getCategory1List()
    },
    methods: {
     async getCategory1List() {
      let result =  await this.$API.attr.getCategory1List()
      if(result.code == 200) {
        this.list1 = result.data
      }
      },
     async handler1() {
        this.list2 = []
        this.list3 = []
        this.cForm.category2Id = ''
        this.cForm.category3Id = ''
        const {category1Id} = this.cForm
        this.$emit('getCategoryId', {categoryID: category1Id, level: 1})
        let result = await this.$API.attr.getCategory2List(category1Id)
        if(result.code == 200) {
          this.list2 = result.data
        }
      },
     async handler2() {
      this.list3 = []
      this.cForm.category3Id = ''
      const {category2Id} = this.cForm
      this.$emit('getCategoryId', {categoryID: category2Id, level: 2})
      let result =  await this.$API.attr.getCategory3List(category2Id)
      if(result.code == 200) {
        this.list3 = result.data
      }
      },
      handler3(){
        const {category3Id} = this.cForm
        this.$emit('getCategoryId', {categoryID: category3Id, level: 3})
      }
    }

}
</script>

<style scoped></style>
